#include <stdio.h>

int main(){
	int res = 20;
	int num1 = 0;
	printf("要输出的内容:");
	printf("hello\n");
	printf("请输入res和num1的值，回车结束:");
	scanf("%d%d",&res,&num1);
	printf("res = %d, num1 = %d\n",res,num1);//'%d'占位符，用来输出变量的值
	return 0;
}
